<template>
  <div>
    <textarea placeholder="请发表留言。。。" rows="10"></textarea>
    <mt-button type="primary" size="large">发表评论</mt-button>
    <div class="test1"><button class="test">test</button></div>
  </div>
</template>

<script>

</script>

<style scoped>
textarea{
  margin: 5px;
  width: 315px;
}
  .test{
    flex: 1 1 auto;
  }
  .test1{
    display: flex;
  }
</style>
